17

 0:   0   0    0.5   1
 1:   5   0    0.5   1
 2:   0   1    0.1   1
 3:   5   1    0.1   1
 4:   1.5 1.5  0.1   4
 5:   3.5 1.5  0.1   4
 6:   0   2.5  0.25  1
 7:   1.5 2.5  0.1   2
 8:   3.5 2.5  0.1   2
 9:   5   2.5  0.25  1
10:   2.5 4    0.1   2
11:   3.5 4    0.1   2

12:   2.5 2    0.4   0
13:   3   3.5  0.4   0

14:   3   3    0     1
15:   3   1.25 0     2
16:   3   0.5  0     3


15

 0:   0   1          1
 1:   1   3          1
 2:   3   9          1
 3:   9   8          1
 4:   8  11          2
 5:  11  10          2
 6:  10   7          2
 7:   7   6          1
 8:   6   2          1
 9:   2   0          1

10:   3   2          3

11:   8   5          4
12:   5   4          4
13:   4   7          4

14:  12  13          0
